21360560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 38635600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 23, 26, 38, 40, 46, 47, 52, 65, 76, 80, 92, 94, 95, 104, 115, 130, 152, 184, 188, 190, 208, 230, 235, 247, 260, 299, 304, 368, 376, 380, 437, 460, 470, 494, 520, 598, 611, 752, 760, 874, 893, 920, 940, 988, 1040, 1081, 1196, 1222, 1235, 1495, 1520, 1748, 1786, 1840, 1880, 1976, 2162, 2185, 2392, 2444, 2470, 2990, 3055, 3496, 3572, 3760, 3952, 4324, 4370, 4465, 4784, 4888, 4940, 5405, 5681, 5980, 6110, 6992, 7144, 8648, 8740, 8930, 9776, 9880, 10810, 11362, 11609, 11960, 12220, 14053, 14288, 17296, 17480, 17860, 19760, 20539, 21620, 22724, 23218, 23920, 24440, 28106, 28405, 34960, 35720, 41078, 43240, 45448, 46436, 48880, 56212, 56810, 58045, 70265, 71440, 82156, 86480, 90896, 92872, 102695, 112424, 113620, 116090, 140530, 164312, 185744, 205390, 224848, 227240, 232180, 267007, 281060, 328624, 410780, 454480, 464360, 534014, 562120, 821560, 928720, 1068028, 1124240, 1335035, 1643120, 2136056, 2670070, 4272112, 5340140, 10680280, 21360560]

約数ペア:

[(1, 21360560), (2, 10680280), (4, 5340140), (5, 4272112), (8, 2670070), (10, 2136056), (13, 1643120), (16, 1335035), (19, 1124240), (20, 1068028), (23, 928720), (26, 821560), (38, 562120), (40, 534014), (46, 464360), (47, 454480), (52, 410780), (65, 328624), (76, 281060), (80, 267007), (92, 232180), (94, 227240), (95, 224848), (104, 205390), (115, 185744), (130, 164312), (152, 140530), (184, 116090), (188, 113620), (190, 112424), (208, 102695), (230, 92872), (235, 90896), (247, 86480), (260, 82156), (299, 71440), (304, 70265), (368, 58045), (376, 56810), (380, 56212), (437, 48880), (460, 46436), (470, 45448), (494, 43240), (520, 41078), (598, 35720), (611, 34960), (752, 28405), (760, 28106), (874, 24440), (893, 23920), (920, 23218), (940, 22724), (988, 21620), (1040, 20539), (1081, 19760), (1196, 17860), (1222, 17480), (1235, 17296), (1495, 14288), (1520, 14053), (1748, 12220), (1786, 11960), (1840, 11609), (1880, 11362), (1976, 10810), (2162, 9880), (2185, 9776), (2392, 8930), (2444, 8740), (2470, 8648), (2990, 7144), (3055, 6992), (3496, 6110), (3572, 5980), (3760, 5681), (3952, 5405), (4324, 4940), (4370, 4888), (4465, 4784)]